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不合格電(dian)線電(dian)纜的危害

電線電纜(lan)是(shi)用于傳輸電力、傳輸信(xin)息和實現(xian)電磁(ci)能量(liang)轉換的一大類電工產品(pin)。在抽查過程中，發現(xian)了大量(liang)的不(bu)合格產品(pin)，這些劣質產品(pin)給電力系統正常運(yun)行埋下諸多(duo)隱患。

1、標(biao)(biao)(biao)志(zhi)不(bu)(bu)合(he)格(ge)的電(dian)線電(dian)纜。標(biao)(biao)(biao)志(zhi)是(shi)電(dian)線電(dian)纜使用識別(bie)產品基本信息的主要(yao)途徑(jing)，根據標(biao)(biao)(biao)準(zhun)規定(ding)標(biao)(biao)(biao)志(zhi)的主要(yao)內(nei)容是(shi)：產品型號(hao)、規格(ge)、標(biao)(biao)(biao)準(zhun)號(hao)、廠(chang)名、產地(di)等在一(yi)定(ding)的標(biao)(biao)(biao)示間距內(nei)，當標(biao)(biao)(biao)志(zhi)不(bu)(bu)合(he)格(ge)時，會造成(cheng)施工(gong)人員識別(bie)錯誤，嚴重時會引發電(dian)氣(qi)事故。

2、結構尺(chi)寸(cun)不合格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。結構尺(chi)寸(cun)的(de)主要(yao)問題是護(hu)(hu)套(tao)厚(hou)度(du)，絕緣厚(hou)度(du)，當電(dian)(dian)纜(lan)的(de)護(hu)(hu)套(tao)和(he)絕緣厚(hou)度(du)不達標時(shi)，致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣(qi)強度(du)會嚴重降低，導(dao)致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)使用(yong)(yong)壽命(ming)縮短，嚴重時(shi)可(ke)導(dao)致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)被擊(ji)穿，絕緣（護(hu)(hu)套(tao)）層起不到(dao)正常保護(hu)(hu)作用(yong)(yong)，從(cong)而發(fa)生電(dian)(dian)氣(qi)短路(lu)和(he)火災等現(xian)象(xiang)。

3、護套(tao)式絕緣(yuan)老(lao)化前的(de)抗張(zhang)強度(du)(du)、伸(shen)(shen)長率合(he)格的(de)電線電纜。絕緣(yuan)護套(tao)老(lao)化前的(de)抗張(zhang)強度(du)(du)、伸(shen)(shen)長率不(bu)(bu)合(he)格直接(jie)大(da)大(da)縮短(duan)電線電纜的(de)工作用壽(shou)命，而且在施工或(huo)在長時間通電且溫度(du)(du)較高的(de)環境(jing)中，極易(yi)出現絕緣(yuan)體斷裂，致使帶電導體裸(luo)露，發生能觸電式短(duan)路(lu)危險。其(qi)不(bu)(bu)合(he)格的(de)主(zhu)要(yao)原(yuan)因是使用了再生料(liao)生產(chan)(chan)，以降(jiang)低產(chan)(chan)品成本，二(er)是不(bu)(bu)具備(bei)生產(chan)(chan)資格小型(xing)企業。

4、導(dao)體(ti)電(dian)(dian)阻(zu)不合格的(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體(ti)電(dian)(dian)阻(zu)主(zhu)要是(shi)考核電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)材料以及截面是(shi)否符合的(de)(de)重要指標。當導(dao)體(ti)電(dian)(dian)阻(zu)超標時，就增大(da)了(le)電(dian)(dian)流在(zai)線(xian)(xian)路上通過時的(de)(de)損耗，加劇(ju)了(le)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)電(dian)(dian)阻(zu)不合格的(de)(de)原因，主(zhu)要進企業為了(le)降(jiang)低成本，將(jiang)占(zhan)原材料成本80%的(de)(de)銅材縮(suo)水，要么降(jiang)低導(dao)體(ti)的(de)(de)截面積(ji)，要么使用含雜(za)質(zhi)過高的(de)(de)再(zai)生銅，這(zhe)樣(yang)致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)電(dian)(dian)阻(zu)嚴重超標，在(zai)使用過程中除易引發火災，還會加速(su)包覆在(zai)電(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層(ceng)的(de)(de)老化(hua)。

在購買電線(xian)電纜的過程中，消費者應注意以下幾個事

第一、要觀(guan)察電(dian)線的(de)外觀(guan)。合格產品(pin)的(de)絕(jue)緣（護套）層(ceng)柔軟、有韌性(xing)和伸縮性(xing)、表面層(ceng)緊(jin)密、光滑、無粗糙(cao)感。如果包裹電(dian)線的(de)塑料很容易被剝去，則存在塑料強度不夠(gou)的(de)問(wen)題。

第二、要看(kan)電(dian)線的(de)(de)截面。合格(ge)產品的(de)(de)銅芯(xin)或鋁(lv)芯(xin)表面應該具有金屬光澤，表面發(fa)黑的(de)(de)銅或表面發(fa)白的(de)(de)鋁(lv)說明已(yi)被氧(yang)化(hua)。

第三、在購買電(dian)線(xian)(xian)時應注意(yi)查(cha)看質量合格證書。如果電(dian)線(xian)(xian)的(de)質量合格，那么其電(dian)線(xian)(xian)質量應該也受(shou)過檢驗，不會有太(tai)大(da)的(de)問題。

沈(shen)陽(yang)凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造(zao)(zao)有限公司(si)隸屬凱鵬集團下屬子公司(si)，專門從事電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生產制造(zao)(zao)，是全國(guo)頗具(ju)實力的沈(shen)陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備(bei)用(yong)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天會在公司(si)官(guan)網(wang)發布(bu)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格表(biao)，及(ji)時更(geng)新銅價以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信息(xi)。更(geng)多有關電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息(xi)可點擊公司(si)官(guan)網(wang)szbowen.cn